How to set a password on a DIR-620 Wi-Fi router: full instructions with photos

An open Wi-Fi network is like an unlocked door to your home: anyone can come in, use your internet, or even access your personal data. D-Link DIR-620 — one of the most popular routers in Russia, but its factory settings often leave the network unprotected. In this article, you'll learn not just how to set a password, but how to do it correctly: choosing strong encryption, hiding the network name, and taking additional security measures.

Many users mistakenly believe that setting a password is a one-time procedure. In fact, The password must be updated every 3-6 months, especially if you've noticed suspicious devices in your connection list or your router has started to slow down for no apparent reason. We'll cover not only the basic setup but also explain why. WPA2-PSK better WEP, how to choose a secure password and what to do if you forgot your current one.

If you've never accessed your router's control panel before, don't worry. This guide is suitable even for beginners: it includes step-by-step screenshots, explanations of each step, and tips on how to avoid mistakes. And at the end of the article, you'll find answers to frequently asked questions, from resetting settings to resolving connection issues after changing your password.

Preparing for setup: what to do before changing your password

Before changing your password DIR-620, make sure you have everything you need. This will save time and prevent problems like unexpected network disconnections during setup.

First, check physical connection to the router. It's best to use the cable (included), as changing Wi-Fi settings can interrupt the connection. Connect one end of the cable to the port LAN on the router (usually yellow), and the other one to the network card of the computer or laptop.

Secondly, prepare login details in the admin panel. By default, DIR-620 This:

• 🌐 Login address: 192.168.0.1 or 192.168.1.1 (look at the sticker on the bottom of the router)
• 🔑 Login: admin
• 🔐 Password: admin or an empty field (if you haven't changed it)

If you have already changed this data and forgot it, you will have to reset the router to factory settingsTo do this, press and hold the button Reset (usually it is recessed into the case and requires a paperclip) for 10-15 seconds until the indicators start flashing.

Login to the DIR-620 router control panel

Now let's move on to practice. Open any browser (Chrome, Firefox, Edge) and enter the IP address of your router in the address bar (for example, 192.168.0.1). If the page does not open, check:

• 🔌 Is the cable connected to the port? LAN (not to be confused with WAN!)
• 🔄 Reboot your router (turn off the power for 30 seconds and turn it on again)
• 🔍 Try a different browser or clear your cache

After successful login, you will see the authorization window. Enter your username and password (default admin/admin). If the data doesn't match, it means someone has already changed it before. In this case, only reset settings (see previous section).

After logging in, you'll be taken to the main page of the control panel. Don't be intimidated by the large number of tabs—we only need one: Wi-Fi → Security Settings (or Wireless → Security in the English version of the firmware).

Choosing an encryption type: WPA2-PSK vs. WEP

This is the most important step! The type of encryption determines how easy it is to crack your password. DIR-620 Several options are available:

The DIR-620 router with firmware older than 2019 may not support WPA3. In this case, choose WPA2-PSK (AES)—it offers the best balance of security and compatibility. If you have very old devices on your network (eg. iPhone 3G or Android 2.x), which do not support WPA2, consider replacing them or using a separate guest network.

On the menu Security settings find the field Network authentication (or Security Mode) and select WPA2-PSK. Then in the field Encryption (Encryption) please indicate AES.

Why is WEP dangerous?

WEP encryption uses a static key, which can be cracked in minutes using free programs like Aircrack-ng. Even 128-bit WEP can be cracked in 10-15 minutes on a modern PC. Hackers can not only access your internet but also intercept traffic (for example, social media passwords).

Creating a Strong Password: Rules and Generator

A weak password will negate all the efforts to set up encryption. 5 rulesthat will make your password invulnerable:

• 🔢 Length: minimum 12 characters (optimally – 16+)
• 🎲 Combination: uppercase and lowercase letters (A-z), numbers (0-9), symbols (!@#$%)
• 🚫 Exclude: names, birth dates, dictionary words, repeating characters (111, qwerty)
• 🔄 Don't use: the same password for Wi-Fi and your router account
• 📝 Store: your password in a password manager (e.g. Keepass or Bitwarden), and not on a sticker on the router

Examples unreliable passwords:

• 12345678 - too simple
• Ivanov1985 — contains personal data
• password — dictionary word

Examples reliable passwords:

• Tr0ub4dour&M4r3 — a mixture of words with letters replaced by numbers
• 7H!5_1s_@_V3ry_S3cur3_P@ss - a long phrase with symbols
• C0ff33_1n_M0rn1ng$ — associative password

If you find it difficult to come up with a password, use a generator (for example, passphrase.ru). The main thing is not to use the first 3-5 options the generator offers, as hackers may check them first.

Password contains ≥12 characters|

There are letters in different registers|

There are numbers and special characters|

The password is not linked to personal data|

You have saved your password in your password manager-->

Setting a password and additional security settings

Now let's move on to practice. In the menu Wi-Fi → Security Settings:

1. In the field PSK network key (Passphrase or Pre-Shared Key) enter the password you created.
2. Make sure encryption is selected. WPA2-PSK And AES.
3. In the field SSID (network name) you can leave the current one or change it to your own. Do not use personal information (For example, Ivanov_WiFi) - this will help hackers guess the password.
4. Tick ​​the box Hide access point (Hide SSID) if you don't want your network to be displayed in the list of available ones.

   ⚠️ Note: Hiding the SSID does not make the network completely invisible to experienced hackers, but it will reduce the number of accidental connections.

After filling in all the fields, click Apply or SaveThe router will reboot (this is normal), and in 1-2 minutes the network will be accessible with the new password.

Don't forget reconnect all devices to Wi-Fi with a new password. On some gadgets (especially Android older than version 7) you may need to "forget" the network before reconnecting.

1) The password is entered correctly (case sensitive!).

2) Encryption type - some devices do not support AES.

3) Update your router's firmware (instructions in the next section).-->

Firmware Update: Why It's Important for Security

Many users skip this step, but outdated firmware — one of the main reasons routers are hacked. Manufacturers regularly release updates that patch vulnerabilities. DIR-620 You can check if the firmware is up to date like this:

1. Go to the control panel (192.168.0.1).
2. Go to System → Software Update (or System → Firmware Update).
3. Click Check for updatesIf a new version is available, download and install it.

⚠️ Caution: Do not turn off the router or interrupt the update process! This may brick the device (break the firmware). If the update is stuck for more than 10 minutes, unplug the router, wait 30 seconds, and then plug it back in—the router should recover.

After the update Be sure to reset the settings (button Reset) and reconfigure the router. This is because new firmware versions may change the structure of configuration files, and old settings may not work correctly.

If on the site D-Link There is no firmware for your revision. DIR-620 (For example, DIR-620 A1 vs DIR-620 C1), don't try to install firmware from a different model—it will damage your device. In this case, it's best to keep the current version, but strengthen the password and disable remote access.

Additional security measures: MAC filtering and guest networking

A password is only the first layer of protection. For maximum security, set up:

1. Filtering by MAC addresses

• 🔍 Find the MAC addresses of your devices (on Windows: ipconfig /all; on Android: Settings → About phone → Status).
• 📋 In the router panel, go to Wi-Fi → MAC Address Filter.
• ✅ Add trusted device addresses and enable filtering.

⚠️ Please note: MAC addresses can be spoofed, so this method does not provide 100% protection, but it will reduce the number of accidental connections.

2. Guest network

• 🏠 Create a separate network for guests in Wi-Fi → Guest Network.
• 🔑 Set a different password and limit the speed (for example, 10 Mbps).
• 🚫 Disable local network access to prevent guests from seeing your devices.

3. Disable remote control

• 🔌 In System → Remote Control Disable internet access.
• 🔒 If you need remote access, change the port 8080 to a non-standard (for example, 12345) and use a complex password.

These measures don't replace a strong password, but they do make your network less vulnerable. For example, even if a hacker cracks your guest network password, they won't be able to access your personal data.

What to do if you forgot your Wi-Fi password

If you have forgotten your password, there are three ways to recover it:

1. Look in the router settings

• 🔌 Connect to the router via cable.
• 🌐 Go to the control panel (192.168.0.1).
• 🔍 Go to Wi-Fi → Security Settings — the password will be in the field PSK network key (may be hidden under dots; click "Show").

2. Reset the router to factory settings

• 🔄 Press and hold the button Reset 10-15 seconds.
• 🔑 After resetting, the password will be admin or empty (see the sticker on the router).
• ⚠️ All settings (including the Wi-Fi password) will be reset and will need to be configured again.

3. Recover the password via the saved configuration file

• 💾 If you previously saved your router settings to a file (in System → Configuration), you can download it back.
• 🔍 Open the file in a text editor and find the line Wl11PSK= — after it there will be a password in encrypted form (it is difficult to decipher, but you can copy and paste it back into the settings).

If none of the methods helped, the only option left is to reset the settings. After that Be sure to update the firmware and set a new strong password as described above.

FAQ: Frequently asked questions about setting up a password on the DIR-620

Is it possible to set a password in Cyrillic?

Technically yes, but not recommendedSome devices (especially older ones) may not correctly process Cyrillic characters in passwords. Use Latin characters, numbers, and symbols (!@#$%).

Why don't some devices connect after changing the password?

The reasons may be as follows:

• 📱 The device does not support WPA2-AES (try it WPA2-TKIP or WPA-PSK).
• 🔄 The old password is saved on the device - "forget" the network and connect again.
• 🔄 The router did not save the settings (reboot it).

How do I know who is connected to my Wi-Fi?

Go to your router's control panel (192.168.0.1) and go to Wi-Fi → Clients (or Wireless → Client List). There will be a list of all connected devices with their MAC addresses. If you see an unfamiliar device, change the password.

Is it possible to set a password without access to the router (for example, via phone)?

No. To change the password, you need access to the router's control panel, which can only be accessed through a browser over a local network (either via cable or Wi-Fi). If you've forgotten your Wi-Fi password and can't connect, your only option is to reset the settings using the reset button. Reset.

How often should I change my Wi-Fi password?

Recommended frequency:

• 🏠 For home network: once every 6 months.
• 🏢 For an office or public place: once every 3 months.
• ⚠️ If you notice suspicious activity (slow internet, unknown devices): immediately.